Multiplication can sometimes seem intimidating, especially for younger students just starting to learn it. However, there's a fascinating trick for multiplying any number by 9 which turns it into something simple and even magical! This technique will not only make your calculations faster, but it should also help to make math a little more fun and interesting.
So, what exactly is this multiplication by 9 trick? It's actually pretty simple. Here's how it works: For any number from 1 to 10, if you want to multiply it by 9, you simply subtract 1 from the number and then figure out what number needs to be added to get the total back to 9.
Sounds a bit confusing? Let's break it down and make it clearer with some examples.
Let's say we start with the number 3. We want to figure out what 3 times 9 is. First, subtract 1 from 3. This gives us 2. Now, what number do we have to add to 2 to get 9? That number is 7. Therefore, 3 times 9 equals 27.
Try another one. Now we will multiply 5 by 9. Subtract 1 from 5, and we get 4. The number we need now to add to 4 to get to 9 is 5. Hence, 5 times 9 equals 45.
This trick works perfectly for numbers from 1 to 10 when multiplied by 9. It's quick, it's easy, and it's incredibly useful.
The multiplication trick by 9 saves time and does a lot to demystify the concept of multiplication. Learning it teaches students how numbers relate to each other and how they can manipulate them. By mastering it, you'll be well on your way to becoming a mental math wizard!
Click here to start practicing multiplying by 9!